Chimney-fastener for lamps.



No. 816,949. PATENTBD APR. 3, 1906. J. STEWART. CHIMNEY FASTBNER FORLAMPS.

APPLICATION FILED SEPT. 26. 1905.

UNITED STATES PATENT onrron.

Specification of Letters Patent.

Patented April 3, 1.906.

Application filed September 26,1905. Serial No. 230,113.

To aZZ whom it may concern:

Be it known that 1, JOHN STEWART, a citizen of the United States ofAmerica, residing at Tarentum, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inChimney Fasteners for Lamps, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inchimney-fasteners for lamps; and the invention relates more particularlyto a novel form of fastener adap ted to be used in connection withoil-lamps for retaining glass chimneys upon the burner of the lamp.

The main object of this invention is to provide a simple and inexpensivefastener that can be readily embodied in the construction of the burnerof a lamp to engage a chimney and firmly retain it upon the burner.

Briefly described, my improved fastener consists of three lugs which areformed integral or carried by the burner of a lamp, two of these lugsbeing adapted to engage the edge of a chimney, while the third lugcarries a spring member which is adapted to engage the edge of thechimney and hold said chimney in engagement with the other two lugs. Toaccomplish this, I specially construct a chimney for use in connectionwith my improved fastener, and the detail construction of the same,together with the detail construction of the fastener, will be morefully described hereinafter.

Reference Will now be had to the accompanying drawings, wherein likenumerals of reference designate corresponding parts through out theseveral views, in which Figure 1 is a fragmentary side elevation of alamp and chimney constructed in accord ance with my invention. Fig. 2 isa horizontal sectional view taken on the line m :10 of Fig. 1. Fig. 3 isa fragmentary vertical sectional view of a chimney constructed inaccordance with my invention, and Fig. 4 is a side elevation of a burnerequipped with my improved fastener.

In the accompanying drawings the reference-numeral 1 designates the bodyor bowl of a lamp adapted to contain an illuminatingoil, such ascoal-oil or kerosene. The, bowl of the lamp supports a burner 2, thegeneral contour and wick-feeding mechanism being of a conventional formcommonly used.

My invention residesinproviding the flange 3 of the burner with threeradially-disposed equidistant lugs 4 4 and 5, these lugs beingpreferably made out of a material similar to the flange 3 and inpractice are preferably stamped or sheared from the flange and bentupwardly, forming hook shaped cleats or lugs, which are clearlyillustrated in Figs. 2 and. 3 of the drawings. In the lug 5 is fixed theend of a resilient member 6, the outer end of this member being bent toform a loop 7, that serves as a handle or grip. As shown in Fig. 2, theloop 7 is formed 011 the inner side of its circumference with aninversely-arcshaped portion 10, corresponding in curvature to theperiphery of the base of the chimney designed to be supported, wherebythe member 6 may the more effectively bear against or grip said chimneyto prevent the same from slipping or tilting.

In Figs. 1 and 3 of the drawings a chimney 8 is clearly illustrated, andthis chimney is adapted to be used in connection with the burner 2. Itwill be observed that the lower edge of the chimney is provided with apcripheral flange 9, and when the chimney is mounted upon the burner thelugs or cleats 4 4, together with the resilient member 6, engage theperipheral flange and firmly retain the chimney in position upon theburner. In placing the chimney upon the burner the peripheral flange 9is placed in the lugs or cleats 4 4, this being accomplished by slidingthe lower edge of the chimney over the lug or cleat 5, and then bymoving the resilient member 6 outwardly the chimney can be seated uponthe burner, at which time, by releasing the resilient member 6 it willengage the peripheral flange 9, the handle or grip portion of theresilient member resting upon the top of the flange 9 and against theside of the chimney.

It will be observed that my improved fastener has a three-point bearingupon the lower edge of the chimney, and as these points engage thegreater half of the lower ed e of the chimney it will beimpossible forthe dhimney to tilt or become disenga ed from the lamp should the samebe sudc enly moved. It will also be seen that it is an extremely easymatter to remove the chimney from the burner in case the wick of thelamp needs attention or it is desired to light the lamp.

It is obvious that various changes may be made in the details ofconstruction without departing from the spirit and scope of theinvention.

formed with an inVersely-arc sh'aped portion corresponding in curvatureto the periphery of the base of a chimney, and said loop being 15adapted to bear against the chimney and maintain the same in engagementwith the first-named lugs.

In testimony whereof I aflix my signature in the presence of twowitnesses.

JOHN STEWART. Witnesses:

ALBEN MONIER, A. MONIER.

